<template>
  <div class="contents-container">
    <div class="search-area">
      <span class="lable-span"><i class="el-icon-search" /> 关键字</span>
      <el-input v-model="listQuery.strKey" style="width: 180px;" size="mini" placeholder="请输入关键字" @change="getListData" />
      <el-button size="mini" class="ml-15" type="primary" @click="getListData">查询</el-button>
      <el-button size="mini" class="ml-15" @click="research">重置</el-button>
      <el-button size="mini" class="ml-15" type="success" @click="addData">新增</el-button>
    </div>
    <!-- 列表 -->
    <el-table :data="listData" border fit highlight-current-row style="width: 100%;">
      <el-table-column label="案例标题" align="center" width="300">
        <template slot-scope="scope">
          <span>{{ scope.row.title }}</span>
        </template>
      </el-table-column>
      <el-table-column label="案例首图" align="center" width="150" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-image contain :src="$urlHost+scope.row.imgUrl" :preview-src-list="srcList" alt="" @click="gteImgList($urlHost+scope.row.imgUrl)" />
        </template>
      </el-table-column>
      <el-table-column label="关联文章" align="center" width="300">
        <template slot-scope="scope">
          <span>{{ scope.row.articleName }}</span>
        </template>
      </el-table-column>
      <el-table-column label="案例描述">
        <template slot-scope="scope">
          <span>{{ scope.row.caseDesc }}</span>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" width="240" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button type="primary" size="mini" @click="handleGetDetail(scope.row.id)">修改</el-button>
          <el-button size="mini" type="danger" @click="handleDeleted(scope.row.id)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>
    <pagination
      v-show="total > 0"
      :total="total"
      :page-index.sync="listQuery.page"
      :page-size.sync="listQuery.limit"
      @pagination="getListData"
    />
    <!-- 新增/修改 -->
    <PopWindow v-show="showForm" :title="title" :mode="modeValue" @close="closeForm" @addHandle="addHandle" @updateHandle="updateHandle">
      <el-form ref="formData" :model="formData" label-width="100px" size="small" :rules="formDataRules">
        <el-form-item label="案例标题" prop="title">
          <el-input v-model="formData.title" class="my-input" />
        </el-form-item>
        <el-form-item label="案例首图" prop="imgUrl">
          <el-upload
            class="avatar-uploader"
            :action="$uploadImg"
            :show-file-list="false"
            :with-credentials="true"
            name="files"
            accept="image/png, image/jpeg"
            :on-success="handleLisenceSuccess"
            :before-upload="beforeUpload"
          >
            <img v-if="formData.imgUrl" :src="$urlHost + formData.imgUrl" class="avatar">
            <i v-else class="el-icon-plus avatar-uploader-icon" style="border: 1px dashed #d9d9d9;" />
            <el-tooltip class="item" effect="dark" content="只能上传jpg/png文件，且不超过10MB" placement="top">
              <i class="el-icon-question" />
            </el-tooltip>
          </el-upload>
        </el-form-item>
        <el-form-item label="关联文章" prop="articleId">
          <el-select v-model="formData.articleId" placeholder="请选择关联案例" style="width:100%;">
            <el-option v-for="item in articleList" :key="item.articleId" :label="item.title" :value="item.articleId" />
          </el-select>
        </el-form-item>
        <el-form-item label="案例简述" prop="caseDesc">
          <el-input v-model="formData.caseDesc" type="textarea" resize="none" :rows="3" />
        </el-form-item>
      </el-form>

    </PopWindow>
  </div>
</template>

<script>
import Pagination from '@/components/Pagination'
import PopWindow from '@/components/PopWindow'
import {
  addCase,
  editCase,
  deleteCase,
  getCaseList,
  getCaseDetail
} from '@/api/case'
import {
  getArticleList
} from '@/api/article'
export default {
  name: 'Carousel',
  components: {
    PopWindow,
    Pagination
  },
  data() {
    return {
      total: 0, // 总数
      listData: [],
      LicenseImg: '',
      typeList: [{
        SubName: '跳转案例',
        SubNum: 1
      },
      {
        SubName: '无动作',
        SubNum: 0
      }
      ],
      articleList: [],
      showForm: false, // 新增修改弹窗显示否
      dialogStatus: '', // 弹窗状态
      title: '案例新增',
      modeValue: 'add',
      uploadImg: '',
      listQuery: {
        page: 1, // 当前页码
        limit: 5, // 每页数量
        strKey: '' // 关键字
      },
      srcList: [],
      formData: {
        title: '', // 案例标题
        imgUrl: '', // 图片地址
        caseDesc: '', // 案例描述
        articleId: '' // 关联文章id
      },
      // 表单验证规则
      formDataRules: {
        title: [{
          required: true,
          message: '请输入案例标题',
          trigger: 'blur'
        },
        {
          max: 50,
          message: '案例标题50个字内',
          trigger: 'blur'
        }
        ],
        caseDesc: [{
          required: true,
          message: '请输入案例简述',
          trigger: 'blur'
        },
        {
          max: 300,
          message: '案例简述300个字内',
          trigger: 'blur'
        }
        ],
        imgUrl: [{
          // required: true,
          message: '请上传案例首图',
          trigger: 'blur'
        }],
        articleId: {
          required: true,
          message: '请选择关联文章',
          trigger: 'change'
        }
      }
    }
  },
  mounted() {
    this.getListData()
    this.getArticleList()
  },
  methods: {
    getListData(page) {
      const that = this
      that.$loadings()
      that.listQuery.page = page || 1
      getCaseList(that.listQuery).then((res) => {
        that.$loadings().close()
        that.listData = res.data
        that.currentPage = page
        that.total = res.count
      }).catch(() => {
        that.$loadings().close()
      })
    },
    getArticleList() {
      const that = this
      that.$loadings()
      getArticleList({
        page: 1, // 当前页码
        limit: 999 // 每页数量
      }).then((res) => {
        that.$loadings().close()
        that.articleList = res.data
      }).catch(() => {
        that.$loadings().close()
      })
    },
    research() {
      this.listQuery = {
        page: 1, // 当前页码
        limit: 5, // 每页数量
        strKey: '' // 关键字
      }
      this.getListData()
    },
    resetTemp() {
      this.title = ''
      this.formData = {
        title: '', // 案例标题
        imgUrl: '', // 图片地址
        caseDesc: '', // 案例描述
        articleId: '' // 关联文章id
      }
    },
    addData() {
      this.resetTemp()
      this.title = '案例新增'
      this.modeValue = 'add'
      this.$nextTick(() => {
        this.$refs['formData'].clearValidate()
        this.showForm = true
      })
    },
    addHandle() {
      var that = this
      that.$refs.formData.validate(valid => {
        if (valid) {
          that.$loadings()
          addCase(that.formData).then(data => {
            that.$loadings().close()
            that.$message({
              type: 'success',
              message: '添加成功!'
            })
            that.getListData()
            that.closeForm() // 重置表单
          })
            .catch(() => {
              that.$loadings().close()
            })
        } else {
          return false
        }
      })
      this.showForm = false
    },
    closeForm() {
      if (this.$refs.formData) {
        this.$refs.formData.resetFields()
      }
      this.showForm = false
    },
    handleGetDetail(id) {
      const that = this
      that.$loadings()
      getCaseDetail(id).then((res) => {
        that.$loadings().close()
        that.formData = {
          id: res.data.id,
          title: res.data.title,
          imgUrl: res.data.imgUrl,
          caseDesc: res.data.caseDesc,
          articleId: res.data.articleId
        }
        this.title = '案例修改'
        this.modeValue = 'edit'
        this.showForm = true
      }).catch((err) => {
        that.$loadings().close()
        console.log(err)
      })
    },
    updateHandle() {
      var that = this
      that.$refs.formData.validate(valid => {
        if (valid) {
          that.$loadings()
          editCase(that.formData).then(data => {
            that.$loadings().close()
            that.$message({
              type: 'success',
              message: '操作成功!'
            })
            that.research()
            that.closeForm() // 重置表单
          })
            .catch(error => {
              that.$loadings().close()
              that.closeForm() // 重置表单
              console.log(error)
            })
        } else {
          return false
        }
      })
    },

    gteImgList(url) {
      this.srcList = []
      this.srcList.push(url)
    },
    handleDeleted(id) {
      const that = this
      that.$confirm('是否删除该条数据?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        that.$loadings().close()
        deleteCase({
          id: id
        }).then((res) => {
          that.$loadings().close()
          that.$message({
            type: 'success',
            message: '操作成功!'
          })
          that.getListData()
        }).catch(() => {
          that.$loadings().close()
        })
      })
    },
    // 图片上传成功回调
    handleLisenceSuccess(res, file) {
      this.imgLoding.close()
      this.$message({
        type: 'success',
        message: '上传成功!'
      })
      this.uploadImg = this.$urlHost + res.data[0] // 前台展示 绝对路径
      console.log(this.uploadImg)
      this.formData.imgUrl = res.data[0] // 后台接受 相对路径
    },
    // 图片上传前回调
    beforeUpload(file) {
      this.imgLoding = this.$loading({
        lock: true,
        text: '图片上传中···',
        spinner: 'el-icon-loading',
        background: 'rgba(255, 255, 255, 0.4)'
      })
      const isPNG = file.type === 'image/png'
      const isJPG = file.type === 'image/jpeg'
      const isLt2M = file.size / 1024 / 1024 < 10

      if (!isPNG && !isJPG) {
        this.$message.error('上传图片只能是 PNG或JPG 格式!')
        this.imgLoding.close()
      }
      if (!isLt2M) {
        this.$message.error('上传图片大小不能超过 10MB!')
        this.imgLoding.close()
      }
      return (isPNG || isJPG) && isLt2M
    },
    showImg(url) {
      if (!url) {
        this.$message({
          type: 'error',
          message: '还未上传案例首图!'
        })
      } else {
        this.$alert('<img src="' + this.$urlHost + url +
						'" style="width: 100%"><p style="text-align: center;">右击在新标签页中打开图片查看原图</p>', '案例首图', {
          dangerouslyUseHTMLString: true,
          customClass: 'entercustom'
        })
      }
    }
  }
}
</script>

<style lang="scss" scoped>
	.avatar-uploader .el-upload {
		border: 1px dashed #d9d9d9;
		border-radius: 6px;
		cursor: pointer;
		position: relative;
		overflow: hidden;
	}

	.avatar-uploader .el-upload:hover {
		border-color: #409EFF;
	}

	.avatar-uploader-icon {
		font-size: 28px;
		color: #8c939d;
		width: 80px;
		height: 60px;
		line-height: 60px;
		text-align: center;
	}

	.avatar {
		width: 150px;
		height: 100px;
	}
</style>
